Inside a Sinkhole: More Than What Appears at the Surface (Video)
Sinkholes are common and unpredictable in Florida. Two sinkholes opened up in Florida this week, and one man died. David Mattingly, CNN national correspondent, took a 50-foot trip down a sinkhole in Williston, Fla.
By Kelly Ni
3/5/2013
Updated: 3/7/2013
